Hotplate stirrer



FIG. 1 is a front perspective view of a hotplate stirrer, showing the new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines shown in the drawings depict portions of the hotplate stirrer that form no part of the claimed design.

The small tic lines shown inside the small circles on the bottom view of the hotplate stirrer form no part of the claimed design. 

CLAIM The ornamental design for a hotplate stirrer, as shown and described. 